Electrical therapeutic machine



March 5, 1940. H. F. DIXON ELECTRICAL THERAPEUTIC MACHINE Filed June 50,1936 2 Sheets-Sheet 1 AQ/kCg/A ATTORNEY.

Filed June 30, 1936 2 Sheets-Sheet 2 ATTORNEY.

Patented Mar. 5, 1 940 PATENT OFFICE ELECTRICAL THERAPEUTIC MACHINEHarvey F. Dixon, Spokane, Wash., assignor of one-fifth to Perry S.Dumbolton, Spokane,

Wash.

Application June 30, 1936, Serial No. 88,255

3 Claims.

This invention relates to an electrical appliance known as a ray machineor electrical therapeutic machine and one object of the invention is theproduction of a machine which when in use causes a ray to be emittedwhich is a combination of high tension violet and short wave impulsesand operated as a closed circuit through the body without heat ordiscomfort while, at the same time, causing effects which are verybeneficial to the person under treatment.

It is another object of the invention to provide a machine emitting rayswhich are very efiective as a germicide, and serve to sterilize anddislodge pus, increase red corpuscles by introduction of oxygen, andspeed up circulation so that nerves are stimulated and caused toproperly perform their functions and relief afforded persons sufferingfrom high or low blood pressure. Other beneficial effects produced bythe rays generated by this machine will be brought out during the courseof the description.

Another object of the invention is to so construct the machine that adesired voltage may be obtained according to the needs of the patient-under treatment, building up of voltage being accomplished bysuccessively closing switches with which the machine is equipped so thata desired flow of current will be obtained.

Another object of the invention is to provide 1 a machine of thischaracter wherein the circuit through a persons body is effected'byapplication of vacuum tubes to the body, thus permit ting application toparticular portions of the body.

Another object of the invention is to so construct the apparatus thatadjustable arc members may be adjusted towards stationary are membersand thus the length of the arcs controlled and the action of the deviceregulated.

Another object of the invention is to so form the apparatus that a lightglobe of an ordinary construction which may be eithernew or burned outmay be used as a vacuum tube and thus reduce the cost of operating theapparatus as well as permitting easy replacement of the tubes whennecessary.

A machine constructed in accordance with this invention is illustratedin the accompanying drawings, wherein Figure 1 is a perspective view ofthe improved machine with elements enclosed in the housing indicated bydotted lines.

Figure 2 is a sectional view upon an enlarged scale taken longitudinallythrough one of the vacuum tubes and its handle.

Figure 3 is a perspective view of one of the adjustable multiple seriesare devices forming part of the machine.

Figure 4 is a sectional View taken through Figure 3 longitudinallythereof. 5

Figure 5 is a wiring diagram.

This therapeutic machine or ray machine as it may be called has a casingI in which a compound transformer 2 and a pair of arc devices 3 arehoused, the transformer being mounted upon 10" the bottom of the casingand the are devices being secured against the inner face of the frontwall 4 of the housing in any desired manner so that the adjusting stems5 of the are devices may project outwardly through this wall and disposethe turning knobs 6 for the stems externally of the casing where theymay be readily grasped and turned. These knobs are tapered, as shown at6, to form pointers which overlie scales 1 provided upon the front wallof the 20 casing and, therefore, proper setting of the arc devices canbe easily effected.

The transformer is constructed as shown in Figures 1 and 5 and has arectangular coreframe having side bars 8 and 9 and end bars 10, 25 allof which are formed of laminated steel strips interlaced at corners ofthe frame and secured to each other in any desired manner. The side bar.8 of the core-frame carries a. plurality of primary coils ll, l2, l3and I4 which are spaced 90" from each other to provide spaces betweenthe coils and the side bar 9 carries secondary coils l5,- l6, l1 and I8,each of which is disposed in directly opposed relation to a companionprimary coil. Power is supplied by conductor wires I9 and 20 leadingfrom a conventional inlet plug mounted through an end wall of the casingand attention is called to the fact that the wire H! has connections 2!,22, 23 and 24 with ends of the coils. l I, l2, l3 and ",while the wire 2leads to one side of a switch 25. This switch and other switches 26, 2'1and 28 are mounted through the front wall l of the casing so that theymay be actuated externally of the casing, and attention is called to thefact that the number of switches switch can be closed and a circuit willbe established through the primary coil H and this coil alone energized.By leaving this switch closed and then successively closing the switches26, 27 and 28, the coils l2, l3 and 14 may be successively energized.Therefore, the voltage may be progressively built up or reduced byclosing or opening the switches 26, 21 and 28 according to the amount ofvoltage desired for a patient.

The secondary coils are wound with any desired number of layers of wireand are connected to each other, as shown at 31, 38 and 39. The currentis induced to the secondary coils through the magnetic core frame andthe coils make up a multiple transformer consisting of four primarycoils and four companion secondary coils assembled in such a way as tocause magnetic lines indicated by the arrows 40 to cut off any tendencyof arcing between adjacent coils. It should also be noted that the spacebetween the adjacent coils is such that each set of companion primaryand secondary coils is, to some extent, a transformer independent of theothers, yet working in unison with each other and the connections beingsuch that there will be produced multiple primary coils and seriessecondary coils. Current from. the secondary coils passes through theadjustable are devices 3, each of which is constructed as shown inFigures 3 and 4, and referring to these figures it will be seen thateach has a body or carrier 4| formed of insulation and provided witharms 42 and 43 at its ends, the arm 42 being thicker than the arm 43. Aplate or intermediate arm 44 which is formed of insulating material iscarried by the body intermediate the arms 42 and 43 and carries a plug45 of conductive material which extends through an opening formed in thearm 44 and has enlarged end portions engaging opposite sides faces ofthe arm 44. A stationary bar or terminal 46 extends through the arm 43where it is secured by a set screw 41 to which is secured one end of aconductor wire 48 leading from an end of the winding of an end one ofthe secondary coils. By securing the terminal bar 46 with a set screw,it may be adjusted to dispose its head 49 a made termined distance fromthe head or enlarged end portion of the plug 45 and then firmly securedin the set position. A terminal bar 55) slidably passes through the arm42 and at it's inner end is provided with a head 5! corresponding to thehead 49 of the terminal bar 45. This terminal is to be shifted todispose its head a desired distance from the plug 45 and, in order to doso, it has been formed with a longitudinally extending slot 52 in whichengages a disc 53 carried by the inner end of the adjusting stem 5 ineccentric relation thereto. The disc 53 swings about the stem 5 withinthe pocket or slot 52 of the arm 42 and exerts a cam action against theterminal bar at one end or the other of the slot 52 according to thedirection in which the stem 5 is turned and the adjustable terminal barwill be shifted towards or away from the plug 45. Therefore, the lengthof the gap between the head 5| of the adjustable terminal and theconfronting head of the plug 45 may be regulated and a spark of thedesired length obtained. The heads 49 and 5! of the bars 46 and and theheads of the plug 44 have their faces formed with needle-like points, asshown in Figure 4, so that a multiplicity of arcs will be formed andthese points. upon the heads may be formed in any desired manner such asby forming the heads as ringed discs, or by mounting steel wool, needlesor the like in the heads. Conductor wires 54, which are single wires,lead from the securing screws 55 carried by the bars 50 to outletsockets 56 secured through the front wall of the casing and into thesesockets are plugged single wire conductors 57 which are threaded throughhandles 58. These handles are formed of insulating material and at theirfront ends carry sockets 59 into which the vacuum tubes 60 are screwed.These tubes when specially made are provided with a single electrodecentrally located in the bulbs, but in an emergency electric light bulbsmay be used.

When this device is in use, a service cord leading from a wall socket isplugged into the inlet socket from which the Wires l9 and 20 extend andterminal plugs of the wires 57 engaged in the outlet sockets 56. Thehandles 58 are grasped and the vacuum. tubes 60 placed against a personsleg, as shown at Si, or any other portion of the body which it isdesired to treat, and the rays generated and delivered from theelectrodes of the tubes will enter the body and pass through the samefrom one tube to the other. These may be violet rays or other types ofrays. By closing the switch 25, the machine will be set in operation andif additional voltage is desired, the switches 26, 27 and 28 may beclosed to energize the coils l2, l3 and i4 and progressively increasethe voltage. In order to control the length of gap between each plug 45and the head 5! of the companion bar 50, the knob 6 of the stem 5carrying the adjusting disc 53 for this bar is grasped and turned toturn the stem and swing the disc about the stem so that it exerts a camaction upon the bar and shifts the bar longitudinally towards or awayfrom the plug. The length of the arc can, therefore, be accuratelyadjusted. I have, therefore, provided an improved electrical therapeuticmachine which is of simple and compact construction and very easy toadjust and operate.

Having thus described the invention, what is claimed as new is:

1. In an electrical therapeutic machine, a transformer having a core anda plurality of sets of companion primary coils spaced from each otherand secondary coils spaced from each other, the secondary coils being inseries and each disposed opposite a companion primary coil, jumpgapmembers connected with opposite ends of the series of secondary coilsand each having a stationary arc member and an adjustable arc member,means for connecting an applicator with an arc member of each jump-gapmember, and means for selectively energizing the primary coilsindividually.

2. In an electrical therapeutic machine, a transformer having a coreprovided with opposed side bars, primary coils carried by one side barand spaced from each other longitudinally thereof, secondary coilscarried by the other side bar and connected in series to each other andbeing spaced from each other longitudinally of the side bar and disposedin opposed relation to companion primary coils, switches correspondingin number to the primary coils, a power wire connected to one end ofeach primary coil, a conductor leading from. the second end of oneprimary coil and secured to one terminal. of each switch, a power wiresecured to the other side of one switch, and a conductor leading fromthe second end of each of the other primary coils and secured to thesecond side of a companion switch, jump-gap members each having astationary arc member connected with one end of the series of secondarycoils and an adjustable arc member adapted to have an applicatorconnected therewith.

3. In an electrical therapeutic machine, a transformer having apluralityof longitudinally spaced primary coils and secondary coils, the pri marycoils being disposed opposite companion secondary coils, means forselectively energizing the primary coils, the secondary coils being inseries, jump-gap members each having a body of insulation having armsspaced laterally from each other, a stationary arc member intermediatesaid arms, an arc member facing one side of the stationary member andhaving a bar extending transversely through one arm, a fastener forengaging the last-mentioned arc member and securing the same in a setposition, a conductor connecting the fastener with one end of the seriesof secondary coils, a shift'able arc member facing the other side of thestationary arc member and having a bar slidable through the other arm.and formed With a slot, a' conductor for connecting the shiftable arcmember with applicator, a stem rotatably mounted in the last-mentionedarm with one end projecting therefrom and provided with turning means,and a disc-carried by the stern eccentric thereto and engaged in a slotof the shiftable arc member for shifting the arc member towards and awayfrom the stationary arc member when turned.

HARVEY F. DIXON.

